<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>TSDemo</title>
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.js
  "></script>
  </head>
  <body>
    <script>
      const whyName = 'why'
      const whyAge = 18
      const whyHeight = 1.88

      function foo(bar) {
        return 'hello world'
      }

      function Person(name, age) {
        this.name = name
        this.age = age
      }
    </script>
  </body>
</html>
